Builder motion



Fb. 10. 1925. K. W. SIMMONS BUILDER MOTION Filed Feb. 28. 1924 PatentedFeb. 10, 1925.

' umrso STATES PATENT OFFICE.

THOMitt; W. SIMMONS, 0F GREENVILLE, SOUTH CAROLINA.

BUILDER MOTION.

Application filed February 28, 1924:. Serial No; 695,779.

Greenville, in the county of Greenville and I State of South Carolma,have lnvented certain new and useful Improvements in Builder Motions, ofwhich the following is a specification, reference being had to theaccompanying d 'awings'. I

This invention relatesto bunch building or forming devices for spinningmachines, and particularly to certain improvements on the bunch buildingmechanism illustrated. in my application for patent filed May 29, 1923,Serial #642,298. Inasmuch as the mechanism in detail is fullyillustrated and described in this pending application, it is notnecessary to go fully into the details of the mechanism in the presentcase and only sufficient oft-he mechanism has been described andillustrated to render the present invention understandable.

The mechanismillustrated in my prior application was so designed as toprovide a bunch builder which included a rectilinearly movablesupplemental cam having a sinuous cam track which acted to cause shortreciprocations of the rocker arm and the ring rail or traverse connectedthereto whereby to lay the bunch upon the spindle, this cam beingautomatically put in operation when the ring rail was lifted afterdotting and the cam acting to holdthe main builder arm out of engagementwith the main cam operating this builder arm and to give shortoscillations to the builder arm until. the buch is completely formed andthen to automatically permit the usual building cam to operate upon thebuilder arm to cause the usual traverse of the ring rail.

One of the objects of the present invention is to provide means wherebythe bunch may be laid with a filling wind in place of a wind disposedentirely at the same point, or in other words simply wound around oneportion of the spindle instead of the wind be ing gradually raised.

A further object is to provide means whereby the amount of filling windlaid upon the spindle may be controlled, said means being adjustablesons to permit the cam which operates the bunch building mechanism tomove through a more or less extent of its complete traverse.

Astill further object in this connection is to provide a stop mechanismfor thepurpose above described which includesn pin;

carried upon the supplemental or buncn building cam, this pin beingadjustable into any one of a number of apertures in the bunch buildingcam, the pin engaging the stop when the bunch building cam has beenshifted to its initial position ready for a new operation andcontrolling the initial position of this bunch building cam.

Other objects will appear in the course the following description.

My invention is illustrated in the accompanying drawings, wherein Figure1 is afragmentary front elevation of a portion of a spinning frame ofordinary construction showing my invention applied thereto;

Figure 2 is a rear elevation of the builder motion with my improvementsthereon;

Figure 3 is a sectionthrough the supplemental cam and an elevation ofthe associated mechanism;

Figure t is an elevation of the improved supplemental cam.

In the drawings, 10 is the end frame of a spinning frame, -11 and 12 theupper and lower rails of the ladder, and 13 an intermediate extension.The ladder carries the spindles 15 upon which operates the ring rail14:. The ring rail is caused to traverse vertically, as usual, by thevertical guide rods 16 connected to the ends of the bell crank levers17, these levers having vertical arms 19 connected by suitableconnecting rods 20. I have shownonly one bell crank lever 17. v This ismounted in a hanger 18.

Extending across the machine is the usual supporting rail 21, andcarried on the extension 13 and the end frame 10 is the cam shaft 22carrying a cam 23 shown as a trilobed filler cam. The builder arm 25 ispivoted to the hanger 243116. carries uponit the winding drum 26, overwhich the builder chain 27 is wound. This chain passes over a pulley 28and from thence extends to the upper end of arm 19 and is connectedthereto by a link 29. The drum 26 carries a worm gear engaged by a worm81, the worm shaft carrying at the outer end of arm 25 the ratchet wheel22 which is provided with the pawl 33 to secure a step by step motion ofthe ratchet wheel. The crank 34 is provided in order to operate the wormshaft by-hand.

When the arm 25 rises under the action of the cam 28 a dagger, as usual,strikes the pawl and releases it, permitting the release of the ratchetwheel 32 one step and the consequent release of the drum. a suliicientamount to permit a predetermined length of chain 27 to be slacked oil.This can only occur when the builder arm has moved through its fullstroke under the action of cam 23. So far, I have described the ordinarybuilder motion for a filler wind.

The attachment as covered in my prior application covers a rectilinearlymovable cam having rack teeth 36 on its upper edge, while its lower edgehas a sinuous cam track 37. The opposite faces of the cam havelongitudinally extending recesses 58. Hangers 39 depend from rail 21,which hangerssupp'ort the longitiulinally extending rails t8. Therecesses 38 in the cam engage these rails i3 and thus the cam can movelongitudinally along the rails. A spring 45 acts to draw the cam to theright in Figure l and resist n'iovement to the left. The supplementalcam operates in front of the main cam 23 and when in operation preventsthe engagement of the builder arm by the main cam, and it is to be notedat this point and it is one of my improvements over my mechanism shownin my prior application that the teeth 37 of the supplemental cam aredisposed at an inclination to the horizontal, so that while all theteeth will give the same amount of traverse to the arm, the first toothwill. cause the traverse of the arm 25 which will cause the thread to belaid at the base of the bobbin; the next tooth will give the sametraverse but will cause the thread to be laid a little higher up, and soon until the tinal tooth is reached.

The rear end of the supplemental cam track 37 is carried upward andrearward, as at 48, to a point above the valleys of the cams 37 so thatwhen the roller E7 moves onto this relatively long inclined base 48, theroller will travel up this base and permit the roller 47 to engage themain cam 13, which will then operate on the builder arm 25. The oppositeend of the cam 37 is also formed with an inclined face 37. To shift thecam member 35 a pinion 4-9 is mounted on shaft 22, which pinion engagesthe rack teeth 36. The pinion rotates with the shaft but islongitudinally shiftable upon the shaft, and to this end is providedwith a spool 50 having the usual annular groove.

Mounted in a bracket 51 is a shifter rod which engages the annulargroove or spool 50 and slides through the bracket 51 and is urged in adirection to carry the pinion 49 into engagement with the teeth 36 of aspring 53. Mounted on arm 19 is a lug 54 which strikes against the endof rod and shifts this rod to the left against the act-ion of spring 53,thus shifting gear wheel i9 into mesh with rack .36. When arm 19 movesreversely, however, the spring 53 will act to shift the 'rod '52 towardthe right in Figure 1. As the arm 17 is connected to the traverse orring rail 14:, it follows that when the ring rail is depressed to doifthe spindles, the lug 54 will be carried against rod and force the rodlaterally against the tension of the spring 53, thus shifting the pinion49 toward the cam 22-5 and out of engagement with the rack iVhcn arm 1t)returned to its initial position by reason oi he lifting of the ringrail after dotting, spring 53 acts to return rod and shift the pinionit) into engagement with rack 30.

A pawl 55 pivoted on rail 21 prevents the return of cam member 35 afterit has reached the end of its motion toward the right. Pawl has a tail56 connected by a normally slack cord 57 to the end of arm 17. Thus whenthis arm is fully depressed, the pawl 55 will be lifted from itsengagement with the cam member 87.

So far, except for the fact previously stated that the teeth 37 of cam36 are in clined to the horizontal, I have described mechanism which isfully illustrated and de scribed in my prior application. Theinclination given to the teeth 37 is one of the improvements over theconstruction previously described and another improven'lent consists inproviding on the cam member a series of stop holes 58 within which a pin59 is adapted to be disposed. I have shown six of these stop holes,numbered from 1 to (a the first stop hole being that one nearest to thespring Coacting with the stop pin 59 is a stop 50 which depends from oneof the rails and is disposed in the path of movement of the pin 59. Theopera tion of these new parts will be described later.

ihe operation of the mechanism as a whole will be understood from whathas gone before but, generally speaking. the operation is as follows:When the bobbins on the spindles are full, the tender depresses the ringrail fully downward to doll the spindles. The full depression of thering rail shifts the lug 54 to the left as in Figure 1, thus shiftingthe pinion 49 out of engagement with the rack, which is at this time ina position sligl'itly beyond that shown in Figure 1. The downwardmovement of the ring rail and the subsequent unwinding of the drum willtighten the connection 57 and cause the pawl to be .lifted and thespring +15 will retract the supplemental cam to its initial position orto a position where the pin 59 is stopped by the stop 60.

hen the winding machine is started up again, the rotation of shaft 22causes the rotation of the pinion, shifting the supplemental cam towardthe left in. Figure 1, and the sinuous cam track gives oscillations ofshort amplitude to the builder arm, these oscillations beingprogressively caused to move up the spindle by reason of the inclinationgiven to the teeth 37. Vhen the end of the cam has moved off the roller47, the main cam will engage the roller and a full traverse will begiven to the builder arm, and the drum 32 will be given a step by stepmotion to wind up the chain,

thereby raising the ring rail toward the upper portion of the spindle.Assuming that the stop pin 59 is inserted in #6 hole in the supplementalcam, then when the cam starts its travel there will be five traversesmade by the ring rail forming the bunch and the maximum amount of yarnwill be used in forming the bunch. Should it be desired to use a lessamount of yarn in forming the bunch, the pin 59 is located in one of thesucceeding holes 5, 4, 3, 2 or 1, as the case may be, which willdetermined the number of traverses to be made by the arm 25. Thus thelocation of the stop pin 59 in any one of the holes 58 will determinethe distance the cam 35 will be retracted by the spring 4!". It will beseen that the inclination of the teeth 37 will give a filling wind forthe bunch which makes the bunch much more stable than it otherwise wouldbe and the stop arrangement provides means whereby the amount of yarn tobe placed on the bunch may be regulated.

In forming the bunch with the mechanism of my prior application asmodified by the present application, the bunch is begun at the lowestpoint of the traverse and as the cam 35 is driven by the pinion, eachsuccessive layer of yarn is placed a little higher up on the bobbin.This form of cam will allow putting on more yarn per bobbin and thismethod of winding the yarn will prevent any tendency of the bunch toslough oft. It will be seen that by the use of this one reciprocatingcam and the sliding gear wheel. 49 that I accomplish, Without anyadditional mechanism for operating the pick gear, the same result as isaccomplished in other bunch laying motions and builder motions known tome where complicated systems of levers and springs are used.

I claim 1. The combination with the builder mo tion of a spinningmachine including an oscillating builder arm and a main cam, of asupplemental bunch building cam adapted to coact with the builder armand when in operation holding the builder arm out of engagement with themain cam, means for shifting said supplemental cam a predetermineddistance in one direction until a bunch is formed, the supplemental camat this time moving out of engagement with the arm and permitting thebuilder arm to engage the main cam, means for holding said supplementalcam in the last named position, means for releasing said holding meansto permit the supplemental cam to return to its initial position whenthe ring rail of the spinning machine has been depressed, and means foradjustably limiting the return movement of the cam.

2. The combination with the builder motion of a spinning machineincluding an oscillating builder arm and a main cam, of a supplementalbunch building cam adapted to coact with the builder arm and when inoperation holding the builder arm out of engagement with the main cam,means for shifting said supplemental cam a predetermined distance in onedirection until a hunch is formed, the supplemental cam at this timemoving out of engagement with the arm and permitting the builder arm toengage the main cam, means for holding said supplemental cam in the lastnamed position, means for releasing said holding means to permit thesupplemental cam to return to its initial position when the ring rail ofthe spinning machine has been depressed, and means for adjustablylimiting the return movement of the cam comprising a fixed stop and amovable stop, one stop being rigidly supported in. the path of movementof the other stop and the other stop being mounted upon the cam.

3. The combination with the builder motion of a spinning machineincluding an oscillating builder arm and a main cam, of a su iplementalbunch building cam adapted to coact with the builder arm and when inoperation holding the builder arm out of engagement with the main cam,means for shifting said supplemental cam a predetermined distance in onedirection until a hunch is formed, the stupplemental cam at this timemoving out of engagement with the arm and permitting the builder arm toengage the main cam, means for holding said supplei'nental cam in thelast named position, means for releasing said cam to permit thesupplemental cam to return to its initial position when the ring rail ofthe spinning machine has been depressed, means for adjustably limitingthe return movement of the cam comprising a pin mounted upon the cam,the cam having a series of perforations, in any one of which the pin isadapted to be disposed, and a stop fixedly mounted in the path ofmovement of said pin.

4. The combination with the builder motion of a spinning machineincluding an os cillatable builder arm and a main cam, of arectilinearly movable bunch building cam adapted to operatively engagethe arm, means for putting said cam in operation at? ter dotting, andmeans for automatically rendering the bunch building cam inopera tiveand the main cam operative when the bunch has been formed, said bunchbuilding cam having its cam face disposed at an inclination to its pathof travel to thereby formed, said bunch building cum having :1 series 01pin-receiving apertures in its length, it stop pin adapted to bedisposed in any one of said apertures, and a stop fixed in the path ofmovement of the pin and limiting' the return movement of the bunchbuilding cum to its initial position.

In testimony Whereoi ll hereunto n'f'lix in signature.

THOMAQ \V. SIMMONS.

